The Chelsea 272HSLLP-B8RK or 272HSLLPB8RK is a 6-bolt hot shift power take-off from the Chelsea 272 Series, designed for medium-duty applications including towing and recovery, aerial, construction equipment, and water trucks. It accepts pneumatic or PowerShift (pneumatic/hydraulic) engagement and mounts to transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers. The 1-1/4" round output shaft uses a 5/16" key. Continuous torque capability reaches 300 lb-ft (407 Nm); intermittent torque is rated in the 201-300 lb-ft (401-500 Nm) range. Output power runs 56+ HP (41-50 kW), with shaft power of 29 HP at 500 RPM and 57 HP at 1,000 RPM. Call us to confirm the right ratio and shift configuration for your application.
Features
6-bolt mounting, compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Shaft power: 29 HP at 500 RPM, 57 HP at 1,000 RPM
Suited for aerial, towing and recovery, construction equipment, and water truck applications
Tech Specs
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: 300 lb-ft (407 Nm) - Check Application Pages for Actual Torque Ratings
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Output Power: 56+ HP (41-50 kW)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Shift Type: Pneumatic; PowerShift (Pneumatic/Hydraulic)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers
Additional Information
The Chelsea 272 Series consolidates earlier medium-duty hot shift PTO lines - including the 230, 231, 236, 238, 270, and 271 series - into a single platform. The 272 Series offers nine speed ratios and eighteen shift options. Direct mount configurations are available with optional Wet-Spline technology for extended PTO and pump shaft service life. Driveshaft output versions include the Smart-Start feature for high-torque start-up conditions. The flanges are rotatable for flexible installation. Common markets include aerial, towing and recovery, construction equipment, and water trucks.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
